Sql
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How to select top five or 'N' rows in Oracle 11g
Learn how to select top five or 'n' rows in oracle 11g with practical examples, diagrams, and best practices. Covers sql, oracle-database, oracle11g development techniques with visual explanations.
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How to use parameters with RPostgreSQL (to insert data)
Learn how to use parameters with rpostgresql (to insert data) with practical examples, diagrams, and best practices. Covers sql, r, postgresql development techniques with visual explanations.

How to change a table name using an SQL query?
Learn how to change a table name using an sql query? with practical examples, diagrams, and best practices. Covers sql, sql-server, sql-server-2005 development techniques with visual explanations.
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Replace function in SQL
Learn replace function in sql with practical examples, diagrams, and best practices. Covers sql, sql-server, t-sql development techniques with visual explanations.
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SQL : BETWEEN vs <= and >=
Learn sql : between vs <= and >= with practical examples, diagrams, and best practices. Covers sql, sql-server, t-sql development techniques with visual explanations.

Creating alias in query and using it
Learn creating alias in query and using it with practical examples, diagrams, and best practices. Covers sql, alias development techniques with visual explanations.

How to get a list column names and datatypes of a table in PostgreSQL?
Learn how to get a list column names and datatypes of a table in postgresql? with practical examples, diagrams, and best practices. Covers sql, postgresql, sqldatatypes development techniques with ...

Altering column size in SQL Server
Learn altering column size in sql server with practical examples, diagrams, and best practices. Covers sql, sql-server, database development techniques with visual explanations.
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How to execute an IN lookup in SQL using Golang?
Learn how to execute an in lookup in sql using golang? with practical examples, diagrams, and best practices. Covers sql, go development techniques with visual explanations.
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Oracle SQL Stored Procedures Call vs. Execute
Learn oracle sql stored procedures call vs. execute with practical examples, diagrams, and best practices. Covers sql, oracle-database, stored-procedures development techniques with visual explanat...

SQL Server - Create a copy of a database table and place it in the same database?
Learn sql server - create a copy of a database table and place it in the same database? with practical examples, diagrams, and best practices. Covers sql, sql-server-2008, t-sql development techniq...

How can I tell what edition of SQL Server runs on the machine?
Learn how can i tell what edition of sql server runs on the machine? with practical examples, diagrams, and best practices. Covers sql, sql-server development techniques with visual explanations.
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SQL Server Insert if not exists
Learn sql server insert if not exists with practical examples, diagrams, and best practices. Covers sql, sql-server, sql-server-2008 development techniques with visual explanations.

Search text in stored procedure in SQL Server
Learn search text in stored procedure in sql server with practical examples, diagrams, and best practices. Covers sql, sql-server, stored-procedures development techniques with visual explanations.

Convert INT to VARCHAR SQL
Learn convert int to varchar sql with practical examples, diagrams, and best practices. Covers sql, select, type-conversion development techniques with visual explanations.
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How to compare two SQLite databases on Linux
Learn how to compare two sqlite databases on linux with practical examples, diagrams, and best practices. Covers sql, linux, sqlite development techniques with visual explanations.
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NOT IN vs NOT EXISTS
Learn not in vs not exists with practical examples, diagrams, and best practices. Covers sql, sql-server, notin development techniques with visual explanations.

SQL-script: How to write ALTER statements to set Primary key on an existing table?
Learn sql-script: how to write alter statements to set primary key on an existing table? with practical examples, diagrams, and best practices. Covers sql, sql-server, sql-server-2008 development t...
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What is the difference between JOIN and INNER JOIN?
Learn what is the difference between join and inner join? with practical examples, diagrams, and best practices. Covers sql, sql-server, join development techniques with visual explanations.
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How can I do an UPDATE statement with JOIN in SQL Server?
Learn how can i do an update statement with join in sql server? with practical examples, diagrams, and best practices. Covers sql, sql-server, t-sql development techniques with visual explanations.

What does the % symbol do at the end of a string in SQL?
Learn what does the % symbol do at the end of a string in sql? with practical examples, diagrams, and best practices. Covers sql, string development techniques with visual explanations.

How to increase the performance of a Database?
Learn how to increase the performance of a database? with practical examples, diagrams, and best practices. Covers sql, database, sql-server-2005 development techniques with visual explanations.
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SQL UPDATE WHERE IN (List) or UPDATE each individually?
Learn sql update where in (list) or update each individually? with practical examples, diagrams, and best practices. Covers sql, sql-server development techniques with visual explanations.
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Finding and deleting duplicate values in a SQL table
Learn finding and deleting duplicate values in a sql table with practical examples, diagrams, and best practices. Covers sql, duplicates development techniques with visual explanations.

How can I delete using INNER JOIN with SQL Server?
Learn how can i delete using inner join with sql server? with practical examples, diagrams, and best practices. Covers sql, sql-server, sql-server-2008 development techniques with visual explanations.
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Delete duplicate rows keeping the first row
Learn delete duplicate rows keeping the first row with practical examples, diagrams, and best practices. Covers sql, sql-server-2008, duplicates development techniques with visual explanations.

Return rows in random order
Learn return rows in random order with practical examples, diagrams, and best practices. Covers sql, sql-server, t-sql development techniques with visual explanations.

How do I do multiple CASE WHEN conditions using SQL Server 2008?
Learn how do i do multiple case when conditions using sql server 2008? with practical examples, diagrams, and best practices. Covers sql, sql-server-2008 development techniques with visual explanat...

OPTION (RECOMPILE) is Always Faster; Why?
Learn option (recompile) is always faster; why? with practical examples, diagrams, and best practices. Covers sql, sql-server, sql-server-2008 development techniques with visual explanations.
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sql query to return differences between two tables
Learn sql query to return differences between two tables with practical examples, diagrams, and best practices. Covers sql, sql-server, sql-server-2008 development techniques with visual explanations.